Total Harmonic Power of Arbitrarily Switched Nonuniform Period Time-Modulated Arrays

In this letter, nonuniform period time-modulated arrays (NTMAs) are investigated and analyzed in terms of radiated power at harmonics, and a more general and accurate closed-form expression is derived. Although there are some studies on the radiated power of NTMAs, it is claimed that the derived exp...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 19; no. 1; pp. 193 - 197
Main Authors Kanbaz, Ihsan, Yesilyurt, Ugur, Kuzu, Suleyman, Aksoy, Ertugrul
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna arrays
Arrays
Closed form solutions
Exact solutions
Frequency modulation
Harmonic analysis
Harmonic power
Mathematical analysis
Mathematical model
nonuniform period
Power system harmonics
sideband radiation
Switches
time modulation
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Summary:In this letter, nonuniform period time-modulated arrays (NTMAs) are investigated and analyzed in terms of radiated power at harmonics, and a more general and accurate closed-form expression is derived. Although there are some studies on the radiated power of NTMAs, it is claimed that the derived expressions in these studies have restrictions to be used as final forms. To overcome these restrictions, a new method is proposed and hence a closed-form power expression is achieved for uniform/nonuniform switching. Moreover, the obtained results are discussed over comparative examples to emphasize the differences among the recent findings. As a result, it is concluded that the proposed method is an effective solution that can eliminate the limitations of the studies in the literature.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2019.2957528